Gardiner f



(No Model.)

G. F. BADGER. l Steam Vacuum Pump.

No. 238,548. Patented March 8, 188|.

INVENTOR fm/ BY v I WITNSSBS:

A'rtromunzs.v

MPETEHS. PHOTO-LIIHOGRAPHER, WASNINGTQN. D c.

Entree Sterns Armar rtree.

GARDINER F. BADGER, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TOy PULSOMETER STEAM PUMP COMPANY, OF NEW YORK, N. Y.

STEAM VACUUM-PUMP.

SPECIFICATION forming part ofy Letters Patent No. 238,548, dated March 8, 1881.

Application llcd November 19, 1880.

To all whom t may concern:

Be it known that I, GARDINER F. BADGER, of East Orange, in the county ot' Essex and State ot' New Jersey, have invented anew and useful Improvement in Steam Vacuum-Pumps, of which the following is a specification.

This invention relates to that class of steam vacuum-pumps called pulsometers, which are operated by steam-pressure brought directly upon the liquid as the forcing element, while the subsequent condensation ofthe steam furnishes the lifting power to supplythe pump.

The invention consists of an improved valveseat designed for the induction and eductiou water-ways, and ot' improved 'devices for holding the valve-seats and valve-guards in place.

rlhe invention is an improvement on the pump patented by Charles H. Hall, September 24, 1872.

Figure l is a vertical sectional front elevation of the pump, showing the induction-valve seat, valve, and guard in section on one side, and in full elevation ou the other side. Fig. 2 is a perspective view ot' the reverse of the pump with parts removed and broken awa-yto exhibit other parts. Fig. 3 is an enlarged sectional elevation of eduction-valve seats, Valve-guard, valve, and holding devices in position. Fig. 4 is an enlarged sectional elevation, showing an induction-valve-seat seat, valve-guard, and valve, and position of holding device.

Similar letters of reference indicate corresponding parts.

'lhepump consists, principally, of the bottleshaped chambers A A, joined together side by side, and having tapering necks bent toward each other, to which is attached, by means of a iiange-joint., B, a cap, B', in which is a continuous passage from each cylinder leading to one common upright passage, into which a small ball, O, is fitted, so as to oscillate with a slight rotary motion between seats formed in the junction. The bottle-shaped chambers A A terminate at their bases in chambers or passages Dl D', which also connect., by means of openings a a, with the vertical inductionpassage D, which openings a a are so formed that the induction-valves E E and their seats F F, constructed so as to sustain the said (No model.)

valves, may be easily/inserted. The eduction passage or chamber H, which is common to both chambers A A, is also constructed so that in the openings or chambers b b, that communicate with each cylinder or chamber A A, are placed valve-seats G G, titted for the reception ot' the same style of valves E E as in the induction-passages. J represents the vacuumchamber, cast with and between chambers A A, and connecting only with the induction-passage D below the valves E E. All these various parts, excepting the cap B, ball C, and valves and valve-seats, are cast in one piece oi' metal.

The faces ot' the chambers D H are closed b v means of iianged covers I I, the lianges of' which correspond with iianges on the chamberfaces on the pump-body, and they are united by means of suitable screw-bolts and nuts.

The openings a a between the inductionpassage D and chambers A are formed with up ward-Haring sides c c, t'or receiving the valvethe necks of seats F F, and the openings b b between the eduction passage or chamber H and chambers A A are also formed with like ul'iward-liaring sides d d, for receiving the valve-seats G G.

ln pulsometerpumps as at present constructed the sides of' the induction and eduction chambers have formed in them recessed ways for receiving the valve-seats, which ways are V-shaped at their bases. In order to get the receiving-seats for the valve-seats true it is necessary to cast the former on chills introduced into the mold. It isfound, however, in the construction ot' pum ps with the recessed V-shaped ways, that there is great difficulty in withdrawing the chill even under the best conditions, and that the said chill is frequently withdrawn only at the cost ofthe chill, that has t0 be recast, while sometimes it is impossible to remove the chill without breaking' the pump. To avoid these difficulties the upward-daring sides c l are substituted for the ordinary recessed V-shaped ways. With this construction the chills are readily knocked out or fall out with cores of the casting.

The valve seats F G, respectively, have downward beveled or sloping edges to conform to their seats c d, and are provided with open- IOO ings f f for the free passage of water, and when in place are supported also on simple packin g-rin gs gg, thatreston the annular shoulders h h, formed below the sides or seats c d.

The valves E E are formed, preferably, of vulcanized rubber of suitable thickness, are circular in form, and of suiiicient diameter to cover the perforations ff in the valve-seats F G.

K K' represent the valveguardsdesigned to prevent the valves F G from openiu g too farof hemispherical shape and perforated, as shown at k, to permit the water to escape without undue pressure between said guards K K' and valves F G, as the latter open, and the guards K over the induction-passages D are each provided with an apical stud, m, that engages in a corresponding socket in the valveseat E.

After an induction-valve seat, F, with its valve E and valve-guard K, is in place, they are rigidly secured by means of a rod, L, whose lower end is inserted into a central socket in the guard K, at right angles to the face of the valve-seat F, while the upper end of said rod L is held by a set-screw, M, that is inserted diagonally through a side of a chamber, A, so that its point shall press axially upon the end of said rod L with whatever force may be desired. By this device an induction-valve seat, valve, and valve-guard are rmly held by but one setserew and in such a manner that the pressure of the valve-seat upon its seat can be adjusted with the greatest ease and celerity, thereby having a great advantage over those constructions wherein several set-screws are required for the same purpose.

The eduction-valve seats G, with their valves E and valve-guards K', are secured in place by means of bolts O, that are entered from the outside through the openings or chambers b b, and have their ends passed through the centers ofthe valve-seats G and screwed into the guards K', as shown in Figs. 2 and 3, said bolts O having` countersunk heads to tit into corresponding countersinksin the shells ofthe chambers b b, and having their heads extended out ward and squared for the convenience ot' applyin g a wrench for tightening them.

By the improved devices herein described, the cost of constructing a pump is very material] y reduced, and the pump is rendered more durable and less liable to get out of order, and its operation is perfect as far as these parts are concerned.

Having thus described myinvention, I claim as new and desire to secure by Letters Patent- 1. In the construction of a steam vacuumpump, the combination, with the inductionchambers D' D' and eduction-chambers H, of the upwardarin g valve-seat seats c d and detachable valve-seats F G, respectively having corresponding downward beveled edges, all arranged substantially as herein shown and described.

2. In a steam vacuum-pump, as a means for holding the induction-valve seats, valves, and valve-guards in place, the combined rod L and set-screw M, substantially as herein shown and described, said rod and screw being set inline at right angles to the face of the valve-seat, as set forth.

3. In a steam vacuum-pump, the combina tion, with the valve-seat G, valve E, and screwtapped valve-guard K', of the screw-bolt O, substantially as herein shown and described, said bolt being entered through the shell of the pump and screwed at right angles into the valve-guard, as set forth.

GARDINER F. BADGER.

Witnesses:

F. L. CLARK, WILLIAM L. MAsLrN. 

